CN112329083A - Intelligent modeling and method of intelligent design system of smoke air duct structure - Google Patents

Abstract

The invention provides an intelligent modeling and method of an intelligent design system of a smoke air duct structure, which comprises an intelligent modeling module, wherein the intelligent modeling module can select and combine between a rectangular smoke air duct and a circular smoke air duct, and between a horizontal smoke air duct and a vertical smoke air duct as well as between an inclined smoke air duct; the intelligent modeling module is a basic module of the intelligent optimization design system of the smoke air duct structure and comprises a man-machine interaction information menu, a man-machine model modification menu, an embedded rule and design experience and an intelligent modification information menu. By adopting the intelligent modeling module, a plurality of workloads of a designer in the design process of the smoke air duct structure, such as model manual construction, component section selection and arrangement, load arrangement, material mechanical property adjustment, parameter setting and the like are saved, and the design efficiency and the design quality are greatly improved.

Description

Intelligent modeling and method of intelligent design system of smoke air duct structure

Technical Field

The invention relates to an intelligent modeling module of a smoke air duct structure, in particular to an intelligent modeling method and a method of an intelligent design system of the smoke air duct structure.

Background

The smoke, air and coal powder pipeline (flue duct for short, commonly called six channels) of the thermal power plant in China comprises a flue, a cold air duct, a hot air duct, a raw coal pipeline, a powder making pipeline and a powder conveying pipeline, and is an important structure for safe operation of the thermal power plant. The smoke and air duct structure is not only a pipeline structure widely used in the thermal power plant industry, but also widely used in various industries such as steel, petroleum, chemical industry, textile, public building and the like and civil industries.

The smoke duct is generally divided into a horizontal smoke duct, a vertical smoke duct, an inclined smoke duct and the like according to the arrangement form. The flue duct structure can be divided into two structural forms of a rectangle and a circle according to the cross section shape. The connecting parts between the smoke and air duct structural members or with other equipment are also provided with different connecting members such as elbows, truncated pyramids, circular truncated cones and the like.

In the smoke air duct structure, structural components mainly comprise a duct body, stiffening ribs, inner support rods, supports and other components, and structural stress mainly comprises internal pressure, accumulated dust, wind load, snow load, earthquake load, temperature load and other structural loads. The structural design of the flue gas duct is mainly based on relevant standard regulations such as a flue gas duct design technical specification of a thermal power plant, a flue gas duct coal powder duct design technical specification matched design calculation method of the thermal power plant, a steam water duct design technical specification of the thermal power plant, a steam water duct stress calculation technical specification of the thermal power plant, an oil gas duct design specification of the thermal power plant, a flue gas duct structural design specification of a tubular furnace in the petrochemical industry, a ventilating duct design technical specification, and an industrial metal duct design specification.

In current flue structural design, most of designers usually adopt the computational formula of the current standard regulation to carry out manual structure calculation or adopt the EXCEL to calculate the table and carry out structural calculation when the structural design, carry out the mode of work such as artifical drawing after finishing calculating, when adopting this kind of mode to carry out flue structural design, can not carry out whole computational analysis to flue structure for flue structural member design is unreasonable, extravagant a large amount of steel, the problem of security can appear even. By adopting the working mode, the design efficiency is low, the structure economy and the safety are not ideal, the arrangement of the structure calculation book is troublesome, the structural span of the flue is greatly limited by the standard regulations, and the structural design mode can not meet the design requirements of the modern thermal power plant. Because the traditional structural design mode adopts manual calculation or an EXCEL calculation table for calculation, and does not adopt large finite element structural calculation software for structural modeling calculation, the structural design mode does not talk about the problem of structural modeling and does not relate to the problem of structural intelligent modeling.

In recent years, with the actual demands of engineering construction and technological progress, many designers have started to adopt large finite element calculation software such as MIDAS, staad. The modeling and structural calculation analysis are carried out on the smoke air duct structure by adopting large-scale finite element calculation software, so that the smoke air duct structure can be integrally analyzed, the modeling model is in a three-dimensional image during the structural design of the smoke air duct, and the economical efficiency and the safety of the smoke air duct structure are greatly improved. However, when the flue duct structure is modeled by using large finite element calculation software, in view of the complexity of structural components of the flue duct and the complexity of operation of the large finite element software, the design is only mastered by part of designers, the structural modeling of the structural design mode is more complex, and the design efficiency still needs to be improved.

According to the defect that part of designers adopt large-scale finite element calculation software to design the flue gas duct at present, software achievements of parametric flue gas duct structure modeling and calculation aiming at flue gas duct structure development appear. The flue gas duct parameterized structure design result is used for carrying out parameterized integration on flue gas duct structure modeling, secondary development is carried out on ABAQUS and other large finite element calculation software, a designer does not need to carry out structure modeling by using another rod piece and does not need to carry out artificial load arrangement when the flue gas duct structure is modeled, the designer can conveniently carry out structure model building only by inputting according to the engineering condition and the process condition of the flue gas duct structure, and the design efficiency is greatly improved.

When the existing smoke and air duct structure parameterization modeling design is carried out, the existing research and development results are only limited on a fixed rectangular flue or a circular flue, namely, secondary development software suitable for both the rectangular flue and the circular flue does not exist, secondary development software suitable for both a horizontal flue and a vertical flue and suitable for an inclined flue does not exist, and the applicable engineering type is single. More importantly, the existing smoke and air duct parametric modeling secondary development software only aims at the structural modeling part, modeling parameters cannot be intelligently linked, the modeling parameters cannot be intelligently adjusted according to subsequent calculation, and the engineering applicability is single and not strong.

Disclosure of Invention

In order to solve the technical problems, the invention provides an intelligent modeling and method of an intelligent design system of a smoke air duct structure, which comprises an intelligent modeling module,

the intelligent modeling module can select and combine between a rectangular flue gas duct and a circular flue gas duct, and between a horizontal flue gas duct and a vertical flue gas duct and between inclined flue gas ducts;

the intelligent modeling module is a basic module of the intelligent optimization design system of the smoke air duct structure and comprises a man-machine interaction information menu, a man-machine model modification menu, an embedded rule, design experience and an intelligent modification information menu;

the intelligent modeling module can be used for building models of pipelines, steel bins and container-structures through parameter adjustment of a parameter man-machine interaction information menu;

the intelligent modeling module and the smoke air duct structure system perform intelligent calculation, intelligent post-processing and intelligent drawing module information interconnection and intercommunication, and a final better structure model can be obtained through intelligent iterative optimization of a computer background.

Furthermore, the initial model of the intelligent modeling module comprises a horizontal section, a vertical section, an auxiliary part of the horizontal section and the vertical section, the auxiliary part comprises a connecting piece between the horizontal section and the vertical section, and a part and a connecting piece part which are respectively selected at two ends of the horizontal section and the vertical section, the connecting piece comprises an elbow, a prism table and a circular table component, the horizontal section, the vertical section and the auxiliary part can be selected to form different combinations, the horizontal section and the vertical section can also be selected to select a rectangular flue and a circular flue respectively, the auxiliary part can be selected in a form through a pull-down menu, the horizontal section and the vertical section can form an inclined flue structure through an input angle, and the intelligent modeling module can form different flue structure combinations through different selections.

Further, the human-computer interaction information menu comprises 3 safety indexes of stress ratio requirement, displacement requirement and frequency requirement, two economic indexes of volume steel consumption and area steel consumption, design temperature, material selection, design pressure, dust load, basic wind pressure, earthquake intensity and acceleration, span information, length and width information, left and right cantilever information, inclination angle, joining member information and support information.

Further, the embedded rules and design experience include initial section selection rules and optimization grouping rules, the initial section selection rules are determined according to component spans, and the optimization grouping rules are determined according to structural stress and attractiveness.

Further, the intelligent modification information menu includes system information and component section information.

Furthermore, safety index parameters and economic index parameters are core indexes of the whole intelligent optimization design system of the smoke air duct structure, various kinds of safety information and economic information are processed in a follow-up intelligent mode and are compared with the safety information and the economic information, the content of the intelligent modification information menu in the intelligent modeling module is adjusted according to the comparison result, then the intelligent computing module is called to carry out new model computing, then the intelligent post-processing module is called to carry out computing result statistics, and then the computing result statistics is compared with the safety index and the economic index, and circulation is formed until a smoke air duct structure model meeting the requirements is constructed.

Furthermore, the intelligent modeling module can be used for intelligent modeling of structures such as pipelines, steel bins and containers through adjustment of temperature parameters, pressure parameters and load parameters through a human-computer interaction information menu parameter.

Furthermore, the man-machine model modification menu is a functional platform of original large finite element software of the whole system, the intelligent modeling module is an open module, namely a structural model can be formed by one key, and the structural model formed by the intelligent modeling module can be modified by the original basic large finite element software.

Furthermore, the intelligent modeling module has the functions of memory and automatic learning, can form different structural model templates through different engineering examples, and can perform construction section selection and system selection on the intelligent modification information menu.

According to the defects existing in the prior art, intelligent optimization design system software of a smoke air duct structure is developed secondarily on large finite element calculation software, the software is mainly based on safety and economic target requirements and is mainly realized by an intelligent modeling module, an intelligent calculation module, an intelligent post-processing module and an intelligent drawing module. Parameter information interconnection and intercommunication among the four intelligent modules can automatically and intelligently adjust parameter information in each module according to the result calculated each time, and finally, the final design achievement of the smoke outlet duct structure, namely safety and economy, is designed in an iterative intelligent optimization mode, so that the multiple purposes of greatly improving the design efficiency and improving the safety and the economy of the smoke outlet duct structure are achieved. The main inventive content of intelligent modeling in the four intelligent modules is as follows.

In the intelligent modeling module, the smoke air duct structure intelligent modeling module is mainly divided into two structure types of a rectangular flue and a circular flue for a designer to select. The rectangular flue or the circular flue is defaulted to a horizontal flue part and a vertical flue part in the intelligent modeling module, and the horizontal flue part and the vertical flue part can adjust the flue to be an inclined flue according to angle adjustment parameter options.

In the intelligent modeling module, the intelligent parameter information of the module comprises a man-machine interaction information menu, a man-machine model modification menu, an embedded standard and design principle menu and an intelligent modification information menu, wherein the man-machine interaction information menu comprises ten parameters such as stress ratio requirements, displacement requirements, frequency requirements, volume (area) steel quantity requirements design temperature, material selection, design pressure, accumulated dust load, basic wind pressure, seismic intensity and acceleration, span information, length and width information (diameter information for a circular flue), left and right cantilever information (up and down extending information for a vertical flue), inclination angle, connection member information (an elbow, a circular table, a prismatic table and the like), support information and other information. For general projects, a required structural model can be formed after a man-machine interaction information menu is completed, for special structures, the intelligent modeling module can manually modify the model by means of a software platform, namely, the modification is completed through a man-machine model modification menu, and the man-machine model modification menu is an original function menu of large finite element software. The intelligent modification information menu comprises a system information menu and a component information menu, the system information menu comprises two smoke duct structure system intelligent selection types of a main structure body type with a transverse stiffening rib and a main structure system with a vertical stiffening rib, and the component information menu comprises intelligent calculation result information such as flue duct body wall thickness, transverse stiffening rib component section (perpendicular to the duct body section), vertical stiffening rib section (parallel to the duct body section), inner brace rod section and the like, grouping information and the like. After the man-machine interaction information menu and the man-machine model modification menu are completed, initial model information is formed, the model information forms system and component section initial information of an intelligent modification menu single model through an embedded standard and design experience principle menu, namely after the man-machine interaction information menu is completed, the intelligent modification information menu can automatically and intelligently form related default values and can form an initial project structure model, and the intelligent modification information menu can be manually intervened and modified. The intelligent modification information menu can also carry out continuous intelligent iterative optimization modification according to the result information of the subsequent intelligent optimization calculation module and the intelligent post-processing module until the safe and economic model parameters are formed.

In the intelligent modeling module, information formed by a human-computer interaction information menu and a human-computer model modification menu can intelligently and automatically calculate all information parameters in the intelligent modification information menu through an embedded standard and design experience principle menu, and the intelligent calculation is completed by carrying out various classification through the design experience summarized by people and then embedding a calculation selection program. After the intelligent modeling module finishes the manual interaction information menu, the human-computer model modification menu and the intelligent modification information menu, information formed by the manual interaction information menu is automatically transmitted to a subsequent intelligent calculation module, the intelligent calculation module forms the sorted calculation result information through an intelligent post-processing module after calculation, the calculation result information is compared with the standard rule and the safety index information requirements such as stress ratio, displacement and the like in the manual interaction information menu of the intelligent modeling module, if the safety index information does not meet the requirements, the component information in the intelligent modification information menu of the intelligent modeling module is adjusted to perform corresponding component section adjustment and system adjustment, and then calculation is performed until the component section information meets the safety requirements. After the structure model completes the safety iterative optimization, economic comparison is carried out, the volume steel content or the area steel content index in the calculation result which is sorted out according to the intelligent post-processing is compared with the volume steel content or the area steel content in the manual interaction information menu in the intelligent modeling module, when the volume steel content or the area steel content index is not met, the component in the intelligent modification information menu is optimized and adjusted until the requirement is met, the final structure model information can be transmitted to the intelligent drawing module for engineering drawing after the smoke duct structure model meets the requirement through calculation, and the final structure model can also be subjected to data conversion into other large finite element calculation software data information for structure rechecking calculation.

According to the description, a final structural model meeting optimization requirements is formed after the intelligent modeling module, the intelligent computing module and the intelligent post-processing module finish iterative interaction, the structural model information is fixed in the intelligent modeling module information, and the final information in the intelligent modeling module is transmitted to the intelligent drawing module for intelligent drawing.

Through the intelligent modeling module, when a designer designs the smoke air duct structure, the designer can complete all the work of modeling, calculating, sorting, drawing and the like of the smoke air duct structure through a man-machine interaction information menu by one key. The intelligent modeling module and the subsequent intelligent computing module, the intelligent post-processing module and the intelligent drawing module can be completed in a computer background by one key, and the intelligent modeling module, the intelligent computing module, the intelligent post-processing module and the intelligent drawing module can also be used for intelligent modeling, intelligent computing, intelligent post-processing and intelligent drawing distribution.

In the intelligent modeling module, after engineering design temperature and steel material information are input in a human-computer interaction information menu, a background of the intelligent modeling module can automatically call a pre-processing and curing function of the intelligent computing module, material mechanical property information such as elastic modulus, yield strength, shear strength and the like of steel is automatically computed according to relevant standard regulations, and the mechanical property information can be automatically transmitted to information of each component of the intelligent modeling module.

In the intelligent modeling module, when loads such as design pressure, dust deposition load, basic wind pressure and the like are input in a man-machine interaction information menu, the intelligent modeling module can automatically calculate and endow corresponding loads to related components in a smoke air duct structure, and manual input is not needed.

In the intelligent modeling module, after engineering span information, length and width information (diameter information for a circular flue), left and right overhanging information (up and down extending information for a vertical flue), an inclination angle, connection component information (an elbow, a round platform, a prism platform and the like) and support information are input in a man-machine interaction information menu, the intelligent modeling module background can carry out system selection and component preliminary selection according to various classified embedded background programs according to summarized design experience and automatically carry out optimization grouping, when the optimization grouping is carried out, the optimization grouping principle is that the stress of the structure is considered to be closer first, the aesthetic and simple requirements are considered to be met second, the flue wall plates of the flue structure are automatically arranged into one group, the stay rods in the flue structure are automatically arranged into one group, the transverse stiffening ribs of the circular flue are automatically arranged into one group, and the transverse stiffening ribs at the bottom of the rectangular flue are automatically arranged into one group, the transverse stiffening ribs on the two sides of the rectangular flue gas duct are automatically set into a group, the transverse stiffening ribs on the top of the rectangular flue gas duct structure are automatically set into a group, and the cross sections of the vertical stiffening ribs are automatically set into a group. And the member section information is automatically and iteratively optimized and selected in a corresponding member section library according to the subsequent intelligent calculation and intelligent post-processing result. And (4) forming a final intelligent optimization final structure model of the smoke air duct structure by using the final member section information after iterative optimization selection. And the final structure model information can be transmitted to an intelligent drawing module for automatic intelligent drawing. And the final structure model information can be converted into structure models such as PKPM, MIDAS, SAP2000, STAAD.

In the intelligent modeling module, when safety requirement indexes such as stress ratio, displacement and the like and economic indexes of volume steel consumption or area steel consumption are input in a man-machine interaction information menu, the safety and economic indexes are generally connected among follow-up intelligent calculation, intelligent post-processing and intelligent modeling, and computer background automatic intelligent adjustment optimization calculation is continuously carried out, the calculated safety information and the economic information in the intelligent calculation and intelligent post-processing module are continuously compared with the safety and economic indexes in the intelligent modeling module, when the safety and economic information are not met, the system parameters and the member section parameters in an intelligent modification information menu in the intelligent modeling module are intelligently adjusted according to the comparison result to form a new structural model, the new structural model is then subjected to follow-up intelligent calculation and intelligent post-processing, and the new result is compared with the safety and economic indexes in a manual interaction information menu in the intelligent modeling module, and after comparison, unsatisfied readjustment is carried out to intelligently modify the system and member section information in the information menu, and the process is repeated until the requirements are met.

Because the flue structure is a type structure that is more fixed, during the manual modeling, the designer needs a root component to carry out the model and builds, and at the model in-process of building, the interrelation of component is more complicated, produces the mistake very easily, and design efficiency is lower. In addition, in the design process, designers need to continuously adjust various design parameters, continuously adjust models, and continuously compare calculation results, which is extremely complex. The conventional flue air duct structure model is seriously dependent on the level and experience of a designer, the same project often generates different results in the modeling and designing processes of different designers, and the safety and the economy of the structure are easy to cause problems. In the intelligent modeling module, a smoke air duct structure model can be constructed in a one-key mode through a large number of engineering example summaries and dozens of human-computer interaction information menu parameters, the smoke air duct structure model further carries out automatic intelligent selection of a model system and automatic intelligent initial endowment of a component section through embedded rules and experiences of summary classification, the workload of a designer is greatly saved, more importantly, in an intelligent modification information menu formed by automatic intelligence, system and component section information can be automatically, intelligently, iteratively and optimally adjusted according to a subsequent intelligent calculation and intelligent post-processing module until a smoke air duct structure model meeting safety requirements and economic requirements is formed, and final smoke air duct structure model information can also be transmitted to an intelligent drawing system. Through the description, the developed intelligent optimization design system for the smoke air duct structure can form a smoke air duct structure model by one key, can also complete finite element intelligent optimization calculation of the smoke air duct structure model by one key, can complete extraction of a processing result after calculation of the smoke air duct structure model by one key, and can complete drawing work of the final engineering of the smoke air duct structure by one key as long as the input or selection of more than ten parameter information in a man-machine interaction information menu is carried out on most smoke air duct structures in an intelligent modeling module.

The intelligent modeling module is a basic module of an intelligent optimization design system of a smoke air duct structure, a man-machine interaction information menu is a basis of the intelligent modeling module, subsequent workload can be saved for most smoke air duct structures through parameter input and selection of a manual interaction information menu, namely after the workload of manual interaction information can be completed within a few minutes, subsequent procedures of model component construction, component positioning, component section selection endowment, load endowment, conventional model modification, design parameter selection adjustment, calculation, post-processing calculation result query comparison, calculation book arrangement, drawing editing, manual drawing and the like can be completely used for performing background iterative optimization on a computer automatic intelligent and intelligent modeling module through a fixed packaging program in the intelligent optimization design system of the smoke air duct structure, and manual intervention is not needed. Through the intelligent modeling module, after parameter information is input into an engineering project within a few minutes, all subsequent processes can be automatically completed within one hour, namely the design work of a smoke air duct structure which needs to be completed within about 10 days, can be completed within one hour by the smoke air duct intelligent optimization design system, and greatly saves the construction period. Because the intelligent modeling module contains the restriction of engineering safety index and economic index, the intelligent modeling module can automatically compare the information with subsequent intelligent calculation results and automatically perform system optimization and component section optimization, so that the design efficiency is greatly improved through the human-computer input of the intelligent modeling module in the intelligent optimization design system of the flue and air duct structure, and the safety and the economy of the structure can also be greatly improved.

The intelligent modeling module has the functions of memory and learning, different engineering templates can be automatically generated by the intelligent modeling module through continuous operation of different engineering projects, engineering information and result information can be automatically stored in a database, and when a new project is applied, the information can be automatically given to the program design of the new project, so that the design fineness is greatly improved.

Because the appearance and the load of the pipeline structure are similar to those of the round flue structure, and the appearance and the load of the steel square bin, the steel round bin, the steel container and the vertical flue structure are similar, the intelligent modeling module is not only suitable for the flue structure, but also suitable for the structures of the pipeline, the steel bin, the container and the like, and the parameter information in the man-machine interaction information menu is also basically suitable for the structures of the pipeline, the steel bin and the container, so when the parameters of temperature, pressure and the like in the man-machine interaction menu are manually adjusted into the pipeline structure or the steel bin structure or the container structure, the intelligent modeling module becomes a corresponding pipeline structure intelligent modeling module or steel bin structure intelligent modeling module or container structure intelligent modeling module, and the working modes of the pipeline or steel bin or container intelligent modeling module and the subsequent intelligent calculation, intelligent post-processing, intelligent drawing module interaction and the like are the same as the smoke air duct structure. In addition, the intelligent optimization design system of the smoke air duct is developed on the basis of large-scale finite element calculation software such as PKPM, MIDAS, SAP2000 and STAAD.PRO, the functions of modeling, calculation, result, drawing and the like corresponding to the original large-scale finite element calculation software are reserved and manual modification of the software system is supported, so when a designer needs to modify a structural model after a man-machine interaction menu is completed by the intelligent modeling module of the smoke air duct structure, corresponding structural components in the structural model formed by the intelligent modeling module can be manually added, deleted and modified by utilizing the corresponding functions of the original large-scale finite element software, and the manually added, deleted and modified structural components are brought into a cross section library of the intelligent optimization design system of the smoke air duct, and a series of functions of subsequent intelligent calculation, intelligent post-processing, intelligent drawing and the like are supported.

Compared with the prior art, the invention has the beneficial effects that:

according to the intelligent modeling module, the workload of modeling the smoke and air duct structure can be reduced by more than 95%, the stress ratio of main components of the smoke and air duct structure can be controlled between 0.6 and 0.9 through safety indexes and economic indexes, the stress performance of the structural components is fully exerted, and the steel consumption of most of the smoke and air duct structure area can be controlled below 100kg/m2, so that the working efficiency is improved, and the safety and the economy of the structure are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic elevation view of a smoke duct structure;

FIG. 2 is a schematic cross-sectional view of a circular flue duct structure;

FIG. 3 is a schematic cross-sectional view of a rectangular flue duct structure;

FIG. 4 is a schematic diagram of an intelligent modeling module workflow.

Description of reference numerals:

FIG. 1:

1-horizontal section of flue gas duct

1 a-left section of horizontal section 1 aa-left connecting piece of horizontal section 1 b-right section of horizontal section

1 bb-horizontal segment right side connecting piece 1 c-horizontal segment left side support 1 d-horizontal segment right side support

2-vertical section of flue

2 a-vertical section lower side section 2 aa-vertical section lower side connector

2 b-upper side section of vertical section 2 bb-upper side connecting piece of vertical section

2 c-lower support of vertical section 2 d-upper support of vertical section

3-channel wall plate 4-transverse stiffening rib 5-vertical stiffening rib

FIG. 2:

4-road wall board 4-transverse stiffening rib 6-inner brace rod

FIG. 3:

3-way body wall plate 4 a-transverse stiffening rib bottom rod

4 b-transverse stiffening rib side rod 4 c-transverse stiffening rib ejector rod

5-inner stay bar

FIG. 4:

7-intelligent modeling module 8-intelligent computing module 9-intelligent post-processing module

10-intelligent drawing module 11-safe economic index comparison 12-rod and system adjustment

13-data conversion two-fold comparison

7 a-Man-machine interaction information menu

7 aa-safety index 7 aaa-stress ratio requirement 7 aab-displacement requirement 7 aac-frequency requirement

7 ab-economic index 7 aba-amount of Steel for volume 7 abb-amount of Steel for area

7 ac-design temperature 7 ad-steel type 7 ae-design pressure 7 af-dust load

7 ag-basic wind pressure 7 ah-seismic information 7 ai-span information 7 aj-length, width or diameter

7 ak-left-right-upper-lower-outward-picking information 7 al-inclination angle 7 am-connecting piece

7 an-bearer information 7 ao-other information

7 b-Man-machine model modification menu

7 c-Embedded Specification and design experience principles

7 ca-component initial section rule 7 cb-component optimization grouping rule

7 d-Intelligent modification information Menu

7 da-system information 7 db-member section information

7 daa-transverse stiffeners are primary 7 dab-vertical stiffeners are primary

7 dba-road wall board 7 dbb-inner brace rod 7 dbc-transverse stiffening rib

7 dbd-vertical stiffener

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the intelligent modeling module of the smoke air duct structure, each parameter of a man-machine interaction information menu has an initial numerical value, so that a system initial structure model exists in the intelligent modeling module, the system initial structure model comprises a horizontal section 1, a vertical section 2 and auxiliary parts of the horizontal section 1 and the vertical section 2, and the auxiliary part of the horizontal section 1 comprises a horizontal section left side section 1a, a horizontal section left side connecting piece 1aa, a horizontal section right side section 1b, a horizontal section right side connecting piece 1bb, a horizontal section left side support 1c, a horizontal section right side support 1d and the like. The auxiliary part of the vertical section 2 comprises a vertical section lower side section 2a, a vertical section lower side connecting piece 2aa, a vertical section upper side section 2b, a vertical section upper side connecting piece 2bb, a vertical section lower side support 2c, a vertical section upper side support 2d and the like respectively, the connecting piece can be selected by components such as a prismatic table, a circular truncated cone, an elbow and the like, and the support can be selected by a fixed support, a hinged support, an elastic support and the like. An initial model elevation schematic diagram of an intelligent modeling system is shown in fig. 1.

In the intelligent modeling module 7 for the smoke and air duct structure, the initial structure model of the system is composed of a horizontal section 1, a vertical section 2 and auxiliary parts of the horizontal section 1 and the vertical section 2, the horizontal section 1 and the vertical section 2 and the auxiliary components 1a, 1aa, 1b, 1bb, 2a, 2aa, 2b and 2bb of the components can be selected correspondingly according to the actual engineering, and the selected components belong to the model construction content, and the non-selected components do not belong to the model construction content. Therefore, the intelligent modeling module can be suitable for more actual engineering types.

In intelligent modeling module 7, the section of the flue structure can be a rectangular flue or a circular flue structure, the circular flue section is composed of a flue wall plate 3, a transverse stiffening rib 4a, a vertical stiffening rib 4b and an inner support rod 6, and the rectangular flue section is composed of a flue wall plate 3, a transverse stiffening rib 4a, a vertical stiffening rib 4b and an inner support rod 6. Regardless of the rectangular flue duct structure or the circular flue duct structure, the transverse stiffeners 4a and the vertical stiffeners 4b are options of the structural system, i.e., when the structural system is optimized, the transverse stiffeners 4a and the vertical stiffeners 4b may appear separately or simultaneously in the structure, respectively.

In the intelligent modeling initial structure model, the horizontal section 1 and the vertical section 2 can be adjusted through the inclination angle 7al in the human-computer interaction information menu parameter 7a, the initial default angle of the inclination angle 7al is 0 degree, when the respective inclination angle 7al of the horizontal section 1 and the vertical section 2 is input to be vertical between 0 degree and 90 degrees, the horizontal section 1 and the vertical section 2 can form an inclined smoke air duct structure according to the change of the angle 7 al.

According to the initial structure model in the intelligent modeling module 7, the engineering structure models meeting the requirements can be selected by mutually combining according to the actual engineering.

In specific implementation, the intelligent modeling module 7 is opened, a project A is newly built, a pop-up model is provided for a user to select for the intelligent modeling module 7, the previous project structural model can be selected, the initial structural model can also be selected, the model information can present a comprehensive structural model for the user to modify, and when the previous project structural type is selected, the project structural type is the structural model which is subjected to final intelligent optimization of the previous typical project and is used for the user to modify into the required model. When the initial structure model is selected, a man-machine interaction information menu 7a is opened, safety indexes 7aa (stress ratio requirement 7aaa, displacement requirement 7aab and frequency requirement 7aac), economic indexes 7ab (volume steel amount 7aba and area steel amount 7abb), design temperature 7ac, steel type 7ad, design pressure 7ae, accumulated ash load 7af, basic wind pressure 7ag, seismic information 7ah, span information 7ai, length and width or diameter 7aj, left, right, upper and lower outward-picking information 7ak, inclination angle 7al, connecting piece 7am, support information 7an and the like are in default vertical existence, and a designer can modify the man-machine interaction parameters of the initial structure model according to the actual engineering condition, in the other information 7ao, the designer selects whether the project includes the horizontal segment 1 and the vertical segment 2 and whether the horizontal segment 1 and the vertical segment 2 have a rectangular or circular structure according to the actual project.

The operation is completed, the smoke air duct structure model is preliminarily constructed, when a special structure is met, if a user feels that the preliminary structure model construction of the smoke air duct is unsatisfactory, the user can modify the preliminary structure model through a human-machine model modification menu 7b, namely, the model is modified through a model construction function menu of large finite element software, and if the large-span smoke air duct structure model is constructed, the user can increase two ends of the smoke air duct span through the human-machine model modification menu 7b to set diagonal braces for preliminary structure model modification.

After the primary model of the smoke air duct connection structure is constructed, a user can select a calculation button to perform structural calculation on the current model, can also select an optimization calculation button to perform model optimization on the current model to obtain a final structure model which finally meets the requirement of a safety index 7aa and an economic index 7ab, can also select a one-key plotting button, combines the functions of the four modules of intelligent modeling 7, intelligent calculation 8, intelligent post-processing 9 and intelligent plotting 10 to form a final design result, namely, achievements such as a final structure model, a design drawing and a calculation book are formed.

In the process of primary structure model construction, when a design temperature 7ac and a steel model 7ab are input and selected in the process of human-computer interaction information menu parameter input or modification, the intelligent modeling module 7 automatically completes the calculation of the mechanical property of the steel material under the action of a material mechanical property calculation rule 7cc in an embedded standard and design experience principle 7c, and transmits the correspondingly calculated material mechanical property information to a corresponding structural component in the intelligent modeling module 7 and a subsequent intelligent calculation module 8. When the design pressure 7ae, the dust deposition load 7af and the basic wind pressure 7ag are input, corresponding load information is automatically given to the corresponding structural member according to the embedded specification and the design experience 7 c. When the seismic information 7ah is input, the corresponding structural member seismic grade is given to the structural corresponding member. When span information 7ai, length and width diameter information 7aj and information 7ak of the left, right, upper and lower structure ends are input, the structural shape of the flue duct changes accordingly, parameters in the intelligent modification information menu 7d change accordingly through embedded specifications and design experience principles 7b, system information 7da (the transverse stiffening ribs are used as the main structural system 7daa and the vertical stiffening ribs are used as the main structural system 7dab) is also formed accordingly, and the cross sections of the road wall plate 7dba, the inner supporting rods 7dbb, the transverse stiffening ribs 7dbc and the vertical stiffening ribs 7dbd in the structural component information 7db form initial cross sections according to embedded relevant rules.

When the intelligent modeling module 7 performs current model calculation, the intelligent modeling module 7 is directly connected with the intelligent calculation module 8, and the intelligent calculation module 8 is connected with the intelligent post-processing module 9 and the intelligent post-processing module 9 is connected with the intelligent drawing module 10. Namely, the intelligent modeling module 7 supports a conventional design program and does not call corresponding modules.

When the intelligent modeling module 7 performs intelligent optimization calculation on the current model, the intelligent modeling module 7, the intelligent calculation module 8 and the intelligent post-processing module 9 are called in a mutual circulation mode, the structural model formed in the intelligent modeling module 7 is continuously adjusted according to the requirements of the safety index 7aa and the economic index 7ab in the intelligent modeling module 7 (namely, the relevant system and the component section in the intelligent modification menu 7d are adjusted), and iterative optimization calculation is continuously performed until the calculation result of the intelligently optimized and adjusted structural model in the intelligent modeling module 7 meets the requirements of the safety index 7aa and the economic index 7 ab. And after the index requirements are met, the final structure model information is transmitted to the intelligent drawing module 10 for drawing the engineering drawing, and the calculation book result information in the intelligent post-processing module 9 is also transmitted to the intelligent drawing module to form a structure calculation book of a final design finished product. When complex and important projects are met, in order to ensure the structure safety, a plurality of projects require to carry out recheck calculation on the structure calculation result, the structure model formed by the intelligent modeling module supports the structure data conversion function, and the structure model information can convert the current structure model information into the structure data models such as PKPM, MIDAS, STAAD.

The smoke and air duct structure intelligent modeling module 7 can not only model the smoke and air duct structure, but also model the structure of a pipeline, a container and a steel bin, and only needs to adjust corresponding parameters in a human-computer interaction information menu 7 a.

According to the intelligent modeling module 7, the workload of modeling the smoke and air duct structure can be reduced by more than 95%, the stress ratio of main components of the smoke and air duct structure can be controlled between 0.6 and 0.9 through safety indexes and economic indexes, the stress performance of the structural components is fully exerted, and the steel consumption of most of the smoke and air duct structure area can be controlled below 100kg/m2, so that the working efficiency is improved, and the safety and the economy of the structure are improved.

Example 1: the method comprises the following steps of carrying out structural modeling calculation on a circular flue air duct structure with the diameter of 2 meters and the span of 6 meters, wherein the inclination is 30 degrees, the design pressure is 4.8KPa, the design temperature is 380 degrees, the dust deposition load is 40kg/m2, the basic air pressure is 0.40KN/m2, the basic earthquake intensity is 7 degrees, and the earthquake acceleration is 0.05 g.

According to an engineering example, when the structure intelligent modeling 7 is carried out, only the smoke air duct structure of the horizontal section 1 is selected, and then the information of 2 meters in diameter, 6 meters in span and 30 degrees in inclination is input in a man-machine interaction menu to form a three-dimensional structure graph. According to the diameter of the pipeline, the intelligent modification information menu 7d can automatically calculate that the wall plate 7dba of the pipeline body is a 6-thick wall plate, the inner supporting rods 7dbb are round pipes with the diameter of 100, the transverse stiffening ribs are I-shaped steel numbers 16 (the distance is 1 meter), the vertical stiffening ribs are I-shaped steel numbers 16, and the distance between the inner supporting rods is 2 meters.

According to engineering examples, the steel type is selected to be Q345B type (the steel type is selected from Q345B and Q235B), and when the design temperature is input, mechanical performance indexes such as yield strength, shear strength, elastic modulus and the like of the steel are automatically calculated and formed and are endowed to the structural member. When the design pressure is input, the design pressure is automatically loaded on the road body wall plate and is vertical to the structural road body wall plate (the direction is vertical to the road body wall plate). When inputting the deposition load, the deposition load can be automatically arranged on the wall plate of the lower semicircular channel body of the flue structure (the direction is vertical downwards). When wind pressure is input, wind load can be automatically loaded on the wall plate of the road body according to load specifications (the direction is vertical to the span direction of the road body).

According to the primary structure model formed by modeling, structure optimization is carried out, the transverse stiffening ribs are optimized and adjusted to 14 # steel, the round pipes are adjusted to 80-diameter steel pipes, the stress ratio of all the members is less than 0.9 (80% of the stress ratio of the members is controlled between 0.6 and 0.85), and the steel amount for area use is 90kg/m 2. The smoke and air duct structure intelligent modeling takes two minutes, the intelligent calculation takes 10 minutes, and the working efficiency is greatly improved.

Example 2: the structure of the rectangular flue air duct with the length of 3 meters, the width of 2 meters and the span of 8 meters is characterized in that the structure is inclined by 10 degrees, the design pressure is 5.8KPa, the design temperature is 400 degrees, the dust load is 0kg/m2, the basic wind pressure is 0.40KN/m2, the basic earthquake intensity is 7 degrees, and the earthquake acceleration is 0.05g, and the structural modeling calculation is carried out.

According to an engineering example, when the structure intelligent modeling 7 is carried out, only the structure of the 2 smoke air ducts of the vertical section is selected, and then information of 3 meters in length, 2 meters in width and 10 degrees in inclination is input in a man-machine interaction menu to form a three-dimensional structure graph. According to the length and the width of the pipeline, the wall plate 7dba of the intelligent modification information menu 7d can be automatically calculated to be a 6-thick wall plate, the inner supporting rods 7dbb are round pipes with the diameter of 100, the transverse stiffening ribs are I-shaped steel 16 (the distance is 1 meter), the vertical stiffening ribs are I-shaped steel 16, and the distance between the inner supporting rods is 2 meters.

According to engineering examples, the steel type is selected to be Q345B type (the steel type is selected from Q345B and Q235B), and when the design temperature is input, mechanical performance indexes such as yield strength, shear strength, elastic modulus and the like of the steel are automatically calculated and formed and are endowed to the structural member. When the design pressure is input, the design pressure is automatically loaded on the road body wall plate and is vertical to the structural road body wall plate (the direction is vertical to the road body wall plate). When wind pressure is input, wind load can be automatically loaded on the wall plate of the road body according to load specifications (the direction is vertical to the span direction of the road body).

According to the primary structure model formed by modeling, structure optimization is carried out, the transverse stiffening ribs are optimized and adjusted to be No. 12 worker steel, the round pipes are adjusted to be steel pipes with the diameter of 80%, the stress ratio of all the components is less than 0.9 (the stress ratio of 80% of the components is controlled to be between 0.6 and 0.85), and the steel amount for area use is 80kg/m 2. The smoke and air duct structure intelligent modeling takes two minutes, the intelligent calculation takes 10 minutes, and the working efficiency is greatly improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. An intelligent modeling and method of an intelligent design system of a smoke air duct structure is characterized by comprising an intelligent modeling module,

the intelligent modeling module can select and combine between a rectangular flue gas duct and a circular flue gas duct, and between a horizontal flue gas duct and a vertical flue gas duct and between inclined flue gas ducts;

the intelligent modeling module is a basic module of the intelligent optimization design system of the smoke air duct structure and comprises a man-machine interaction information menu, a man-machine model modification menu, an embedded rule, design experience and an intelligent modification information menu;

the intelligent modeling module can be used for building models of pipelines, steel bins and container-structures through parameter adjustment of a parameter man-machine interaction information menu;

the intelligent modeling module and the smoke air duct structure system perform intelligent calculation, intelligent post-processing and intelligent drawing module information interconnection and intercommunication, and a final better structure model can be obtained through intelligent iterative optimization of a computer background.

2. The intelligent modeling and method of a smoke duct structure intelligent design system of claim 1, it is characterized in that the initial model of the intelligent modeling module comprises a horizontal section, a vertical section, and an auxiliary part of the horizontal section and the vertical section, the auxiliary part comprises a connecting piece between the horizontal section and the vertical section, and a picking part and a connecting piece part at two ends of the horizontal section and the vertical section respectively, the connecting piece comprises an elbow, a prism table and a circular platform member, the horizontal section, the vertical section and the auxiliary part can be selected to form different combinations, the horizontal section and the vertical section are also selected to select a rectangular flue and a circular flue respectively, the auxiliary part can be selected in a form through a pull-down menu, the horizontal section and the vertical section can form an inclined flue structure through an input angle, and the intelligent modeling module can form different flue structure combinations through different selections.

3. The intelligent modeling and method for the intelligent design system of the smoke duct structure as claimed in claim 1, wherein the man-machine interaction information menu comprises 3 safety indexes of stress ratio requirement, displacement requirement and frequency requirement, two economic indexes of volume steel consumption and area steel consumption, design temperature, material selection, design pressure, dust load, basic wind pressure, earthquake intensity and acceleration, span information, length and width information, left and right cantilever information, inclination angle, connection component information and support information.

4. The intelligent modeling and design method for a smoke duct structure intelligent design system of claim 1, characterized in that said embedded rules and design experience include initial section selection rules, which are determined according to component span, and optimization grouping rules, which are determined according to structure stress and aesthetics.

5. The intelligent modeling and method for a smoke duct structure intelligent design system of claim 1, wherein said intelligent modification information menu comprises architecture information and component section information.

6. The intelligent modeling and method for the intelligent design system of the smoke duct structure as claimed in claim 1, wherein the safety index parameter and the economic index parameter are core indexes of the whole intelligent optimization design system of the smoke duct structure, the follow-up intelligent post-processing of various safety information and economic information is compared with the two indexes, the intelligent modification information menu content in the intelligent modeling module is adjusted according to the comparison result, the intelligent computing module is called to perform new model computation, the intelligent post-processing module is called to perform computation result statistics and then is compared with the safety index and the economic index, and a cycle is formed until a smoke duct structure model meeting the requirements is constructed.

7. The intelligent modeling and method for the intelligent design system of the smoke duct structure as claimed in claim 1, wherein the intelligent modeling module is adjusted by the menu parameters of the temperature parameter, the pressure parameter, and the load parameter, and can be used for the intelligent modeling of the structure of the pipeline, the steel silo, the container, etc.

8. The intelligent modeling and method for intelligent design system of flue gas duct structure as claimed in claim 1, wherein the man-machine model modification menu is the function platform of the original large finite element software of the whole system, the intelligent modeling module is an open module, i.e. a structural model can be formed by one key, and the structural model formed by the intelligent modeling module can also be modified by the original basic large finite element software.

9. The intelligent modeling and method for intelligent design system of flue gas duct structure as claimed in claim 1, wherein said intelligent modeling module has memory and automatic learning functions, said intelligent modeling module can form different structure model templates through different engineering examples, and can make construction section selection and system selection in said intelligent modification information menu.

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